Power pump-rod lift



Mays, 1931.

POWER PUMP ROD LIFT 2 Sheets-Sheet l Filed Aug. 5, '1929 4 A 7 .32 M/H l MaY 5, 1931.. T. o. DucKwoRTH POWER 'PUMl3` Ron LIFT Filed Aug. e,

2 Sheets-Sheet 2 a I 1 L I HHH Patented May 5, 1931 i i UNrrEo STATES THEOPHIUS O. DUCKWORTH, F LAKE CITY,Y UTAH Y POWER PUMij-'Ron .Lirifrr' l Application nica August 6,1929. l semaine. sslsgiajf, l

This invention relates to a power lift for a pump rod in wells.v One of its objects is to provide a power driven pump rod lifterV that will abolish the long stroke beam lift now used on many pumps.

Another object of this invention-is to propump with which any length ofstroke may be had without increasing the width of the housing thereof. y Y

Another object of this invention is to provide a pump rod lift that will give the up and down movement to the pump rod in a very small space and use a small amount of power for the operation thereof. Y

With these and other objects in view the invention comprises certain novel features of construction as hereinafter fully described and claimed.

V In the accompanying drawing forming a part of this specilication and in which corre` sponding parts `are denoted by like reference characters, is illustrated the preferred form ofembodiment of the invention capableiof carrying the same into practical operation, it being understood that the invention is not necessarily limited thereto, as various changes in shape, proportions and general assemblage of its parts may be resorted to without departing from the principles of the invention or sacrificing any of its advantages, and the right is therefor reserved for will fall within the scope of the invention and claims made therefor.

' Referring to the drawing;

Figure VV1 is a front view of the invention showing itin an upper stroke.` f Fig. 2 Vis.A a front viewl of the invention showing it in a downward stroke.

Fig. 3 is a side view of the invention. Fig. 4 is a view through line 4--4 Fig. 1, fof housingland guides.

5-`5 Fig. 3 of the support only.

Fig. 6 is aside view of the clamp 6. y Fig. 7 is a view of applicants operating mechanism as appliedto a pump.

Fig. 8 isa side view of idler roller bearing 25.

making all changes and modifications which Fig. 5 is an enlarged view throughline Thereference charactei'-A denotes coverling for a well vto which the invention'is attached, B alpipefwithin the well which supports a Vpump valveca'sing C" at'its lower end. D denotes a pump lifting rod which 55 V"operates the' valves Vwithiirthe casingfC vide a reciprocating vertical'motion for a when the invention is operated.` denotes a discharge pipeffandFa pulley.,`

yThe inventio'n comprisesin combination with a pumpla support 1 secured onto the cov- 60 eringofa-wellbybolts or other means." In

the-front of the supportare notches 3 Yand 4 having roller bearings''therei'nover which horizontally -placed rods 2 travel lback fand forth through the notches. The rods 2 and-U5 *theroller `bearings 5 are secured within the notches by a yoke 6 secureditothe supportA 1 'by bolts 8; `The clamp being notched at V7 to allow it tobe placed joverthe'-rod2.` f 7 i'l On each end of the rods2 are placed springs 70 9 to receive the lateralar of therods 2.- i Y' Secured to each end of the horizontal rods 2lare vertical guides 10 over which housing `through theguidesland each end of the rods 2. The housing `l'lhavlil'igproj'ections 1.3y on each side' thereof, .Eachprojfe'ctionhaving a cleat 14ise'cured thereto byscrewsY 15 inv such a manner to hold the housing onto the guides' and to allow it to moveV freely up' and down on the guides. i

On the inner face of the housing 11 and in the center thereof is secured an endless rack 16 which is secured thereon by set screws 17. 85 To the bottomof the housing is pivotally connected a rod 18 which connectsthe housing with cross head 19 of the pump rod D. The cross head 19 travels on Vguide 2O on the supportl and on guide 21 secured to the cover A 90 of the well. v Y

Passing through a bearing 22 in the support 1 is a shaft 23 one end thereof being secured to pulley F and the other end thereof having a gear 24 attached .thereto within the housing 11. Placed over the shaft 23 is an idler roller bearing 25 which is located between the bearing `22 and the gear 24 to hold wear on the inner face of the rim 27 of the housing as it is moved up and down or from side to side by the gear 25 when in operation.

The roller bearing 25 also prevents an excess 5 of lost motion as well.

In the operation of the invention the housing 11 moves upward, then sidewise, then downward and then sidewise to starting point, thus giving a pumping movement on l() connecting rod 18 to rise and lower the pump rod D to draw liquid from the well.

Power is supplied to the invention by a belt over pulley F which is driven in the usual manner by engine or motor.

Having thus described the invention what I claim as new and desire to secure by Letters Patent, is:

1. In a power pumperod lift comprising a support having notches therein, horizontally 20 moving rods within said notches, said rods having other rods secured to their ends thereof, said other rods forming guides, a housing having projections thereon, said projections for holding said housing on said guides in as such a manner that said housing can be moved upward and downward and means for operating said housing on said guides, all substantially as described.

2. In a power pump-rod lift comprising 80 an upright support having notches therein through which horizontally placed rods move back and forth, other rods secured to the ends of said horizontally placed rods, said other rods forming guides upon which a housing operates up and down, said housing having projections thereon extending in such a manner to hold said housing onto said guides, said housing having an endless rack therein operated by a pinion secured to a shaft passing through said upright, said rack and pinion to operate said housing, and means for connecting said housing to a pump-rod all substantially as described.

II-IEOPHIUS O. DUCKWORTH. 

